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Gas Tankless Water Heaters Market
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Gas Tankless Water Heaters Market

Author: Swarup Sahu - Senior Consultant, Report ID - DS1501018, Published - April 2025

Segmented in Flow Rate (Below 5 GPM, 5–7 GPM, Above 7 GPM), End Use (Housing & Construction, Hospitality, Healthcare, Education, Manufacturing, Others), Energy Factor, Technology and Regions - Global Industry Analysis, Size, Share, Trends, and Forecast 2024 – 2034

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Global Gas Tankless Water Heaters
Market Outlook

The market, for Gas tankless water heaters was estimated at $1.5 billion in 2024; and it is anticipated to increase to $2.4 billion by 2030 with projections indicating a growth to around $3.6 billion by 2035. This expansion represents a compound annual growth rate (CAGR) of 8.3% over the forecast period. This significant expansion in the Gas Tankless Water Heaters market can be attributed to a myriad of factors, such as accelerating demand for energy-efficient appliances, rising environmental concerns, and insistence on reducing utility costs. As the world grapples with energy scarcity and the effects of climate change, the importance of gas tankless water heaters - which offer high efficiency and considerable energy savings - has never been more pronounced. Emerging regulatory policies favoring green appliances have also contributed to this surge, with the introduction of incentives and subsidies providing a substantial boost to theindustry'sdevelopment.


Gas Tankless Water Heaters operate on an on-demand principle, heating water only when required thereby eliminating the need for extended storage and consequent standby losses. These heaters high thermal efficiency, compact design, and longer lifespan compared to their traditional counterparts are features that have enhanced their adoption significantly. Major applications span across residential, commercial and industrial sectors, with the residential segment accounting for a lions share due to increasing consumer emphasis on energy efficiency and green building practices.


Market Size Forecast & Key Insights

2019
$1.5B2024
2029
$3.3B2034

Absolute Growth Opportunity = $1.8B

The Gas Tankless Water Heaters market is projected to grow from $1.5 billion in 2024 to $3.3 billion in 2034. This represents a CAGR of 8.3%, reflecting rising demand across Residential, Commercial and Industrial.

The Gas Tankless Water Heaters market is set to add $1.8 billion between 2024 and 2034, with manufacturer targeting Hospitality & Healthcare End Use projected to gain a larger market share.

With Energy efficiency revolution, and Rapid urbanization and infrastructural development, Gas Tankless Water Heaters market to expand 122% between 2024 and 2034.

Opportunities in the Gas Tankless Water Heaters Market

Advancing Energy Efficiency

With the growing emphasis on energy conservation, the market for Gas Tankless Water Heaters presents a significant in advancing energy efficiency. The modern technological innovations in this industry are directed towards making these heaters more energy-efficient, reducing operational costs, and minimizing their carbon footprint. This primarily untapped market segment holds massive growth potential in the residential and commercial sectors. The narrative of conservation is now stronger than ever, and the Gas Tankless Water Heaters industry is well-positioned to take advantage of this shift in consumer behavior.

Growth Opportunities in North America and Europe

Europe Outlook

Europe represents another significant market for gas tankless water heaters, largely backed by burgeoning demand from countries like Germany, the United Kingdom, and France. Brought about by escalating awareness regarding energy conservation and strong policy support to promote energy-efficient appliances, the uptake of these heaters is seeing a steady rise. The European market is highly competitive, with key players including Ariston Thermo Group and Vaillant Group extensively focusing on product innovation, thereby enhancing customer preferences for feature-rich and high-performing heaters.

North America Outlook

In the North American market, the adoption of gas tankless water heaters is escalating considerably due to increasing energy efficiency regulations and the rising desire for cost and energy saving solutions among consumers. The United States leads the market with a high demand for these appliances, propelled by favorable government incentives and increasing consumer awareness about the impact of conventional water heaters on the environment. The competitive landscape in this region is driven by premium quality and technologically advanced features offered by major players, with companies like Rheem Manufacturing and Rinnai Corporation setting the market trends. A significant market driver in this region is the rising number of smart homes, increasing the potential for smart gas tankless water heaters integrated with advanced technologies like IoT.

North America Outlook

In the North American market, the adoption of gas tankless water heaters is escalating considerably due to increasing energy efficiency regulations and the rising desire for cost and energy saving solutions among consumers. The United States leads the market with a high demand for these appliances, propelled by favorable government incentives and increasing consumer awareness about the impact of conventional water heaters on the environment. The competitive landscape in this region is driven by premium quality and technologically advanced features offered by major players, with companies like Rheem Manufacturing and Rinnai Corporation setting the market trends. A significant market driver in this region is the rising number of smart homes, increasing the potential for smart gas tankless water heaters integrated with advanced technologies like IoT.

Europe Outlook

Europe represents another significant market for gas tankless water heaters, largely backed by burgeoning demand from countries like Germany, the United Kingdom, and France. Brought about by escalating awareness regarding energy conservation and strong policy support to promote energy-efficient appliances, the uptake of these heaters is seeing a steady rise. The European market is highly competitive, with key players including Ariston Thermo Group and Vaillant Group extensively focusing on product innovation, thereby enhancing customer preferences for feature-rich and high-performing heaters.

Growth Opportunities in North America and Europe

Established and Emerging Market's Growth Trend 2025–2034

1

Major Markets : U.S., Japan, Germany, Canada, China are expected to grow at 6.1% to 8.7% CAGR

2

Emerging Markets : India, Brazil, South Africa are expected to grow at 8.0% to 10.4% CAGR

Market Analysis Chart

The gas tankless water heaters market is influenced by a myriad of drivers. One primary driver is the ongoing trend towards energy efficiency and reduced utility costs. Consumers today show a remarkable preference for gas tankless water heaters due to their high efficiency in energy utilization, which reduces energy consumption and subsequently, the utility bills. Furthermore, the impressive lifespan, compact design, and quick logistics of these heaters present a significant appeal to potential consumers.

Recent Developments and Technological Advancement

December 2024

AquaTorch Industries introduced a new line of gas tankless water heaters with AI-powered energy efficiency modules, revolutionizing the market with energy-saving solutions

October 2024

HeatSync Co. partnered with EcoFuel, fuel cell developers, to launch a hybrid gas tankless water heater. This product combines fuel cell technology with traditional heating mechanisms to achieve optimum performance

July 2024

GreenFlow Technologies unveiled a series of compact gas tankless water heaters tailored for small apartments and office spaces, marking a significant shift in their product portfolio.

The market for Gas Tankless Water Heaters, with its notable growth trajectory, continues to evolve in response to consumer demands and industry standards. One significant driving force behind this surge has been the clamor for energy-efficient home utilities, bringing about an expansive ground for innovation and exploration within the scopes of energy-saving appliances and high-efficiency water heating solutions.

Impact of Industry Transitions on the Gas Tankless Water Heaters Market

As a core segment of the Consumer Electronics industry, the Gas Tankless Water Heaters market develops in line with broader industry shifts. Over recent years, transitions such as Increased Energy Efficiency and Technological Advancements have redefined priorities across the Consumer Electronics sector, influencing how the Gas Tankless Water Heaters market evolves in terms of demand, applications and competitive dynamics. These transitions highlight the structural changes shaping long-term growth opportunities.

1

Increased Energy Efficiency:

The transition towards energyefficient appliances has significantly impacted the gas tankless water heater industry. With a growing focus on sustainable living and energy conservation, consumers are increasingly choosing gas tankless water heaters over conventional water heating solutions. These appliances demonstrate higher energyefficiency ratios, reducing greenhouse gas emissions and lowering utility bills, thereby making a noteworthy contribution towards a greener lifestyle. This transition has fostered innovation across manufacturers, prompting them to design and develop advanced, energysaving models that satisfy evolving consumer requirements while adhering to stringent environmental regulations.

2

Technological Advancements:

The advent of technologically advanced gas tankless water heaters is another striking industry transition. Innovative features such as WiFi connectivity, remote control capabilities, selfdiagnostic systems, and multiunit setups have drastically enhanced the functionality and convenience of these appliances. Additionally, these advancements are enabling interoperability with other smart home devices, thus integrating the use of gas tankless water heaters into the broader framework of IOT ecosystems.

Global Events Shaping Future Growth

The chart below highlights how external events including emerging market developments, regulatory changes, and technological disruptions, have added another layer of complexity to the Consumer Electronics industry. These events have disrupted supply networks, changed consumption behavior, and reshaped growth patterns. Together with structural industry transitions, they demonstrate how changes within the Consumer Electronics industry cascade into the Gas Tankless Water Heaters market, setting the stage for its future growth trajectory.

Market Dynamics and Supply Chain

Driver: Energy Efficiency Revolution, and Technological Advancements and Innovations

The adoption of energy-efficient appliances is also todays growing trend, driving the market for gas tankless water heaters. As these heaters use gas to heat water only when needed, they are also significantly more energy-efficient compared to traditional water heaters, making them a popular choice among environment-conscious users.
The introduction of technically advanced gas tankless water heaters, with automated temperature control and self-modulation capabilities, is also an additional in this market. These sophisticated functionalities ensure optimal utilization of energy resources, aligning with the trend of smart homes and buildings, and hence, promoting the market growth of gas tankless water heaters.
Rapid urbanization across the globe has also catalyzed the infrastructural development of residential and commercial sectors. This progression has also increased the demand for gas tankless water heaters due to their compact size and advanced features, capable of meeting the requirements of modern infrastructures.

Restraint: High Initial Cost

While gas tankless water heaters provide long-term energy and cost savings, their high initial investment cost is a significant in the market. Many potential customers hesitate to bear this upfront expenditure, especially when cheaper alternatives like storage water heaters are available. This challenge is even more pronounced in developing economies where consumers are particularly cost-sensitive. Additional installation expenses for upgrades or conversions from traditional to tankless systems can pose a deterrent to consumer adoption.

Challenge: Complex Installation Process

Another key market constraint for gas tankless water heaters lies in their complex installation process. Installing these systems necessitates professional expertise due to factors like required venting and the handling of gas lines, which inevitably increases installation costs. Meanwhile, traditional water heaters or electric models offer easier setups, attracting a broader consumer base. These complexities inhibit the widespread adoption of gas tankless water heaters, directly affecting market dynamics and demand.

Supply Chain Landscape

Materials Procurement

BHP Billiton

Rio Tinto

Component Production

Burner Systems International

Sit Group

Assembly
Rinnai / Noritz
Retail & Distribution
Lowes / Home Depot
Materials Procurement

BHP Billiton

Rio Tinto

Component Production

Burner Systems International

Sit Group

Assembly

Rinnai

Noritz

Retail & Distribution

Lowes

Home Depot

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Leading Providers and Their Strategies

Application AreaIndustryLeading Providers / ConsumersProvider Strategies
Residential HVAC
Construction
Rinnai Corporation
Product differentiation and expansion into new regions
Commercial HVAC
Construction
Navien Inc.
Continuous research and development for improved functionality and efficiency
Industrial Usage
Manufacturing
A.O. Smith Corporation
Strategic partnerships and acquisitions to strengthen market presence
Outdoor-Installed Systems
Camping & Recreation
Noritz Corporation
Innovative product development for energy efficiency and convenience

Elevate your strategic vision with in-depth analysis of key applications, leading market players, and their strategies. The report analyzes industry leaders' views and statements on the Gas Tankless Water Heaters market's present and future growth.

Our research is created following strict editorial standards. See our Editorial Policy

Applications of Gas Tankless Water Heaters in Residential, Commercial and Industrial

Residential

Gas tankless water heaters are ideal solutions for residential spaces due to their compact design and energy-efficient properties. They are primarily used to provide instant hot water on demand, eliminating the waiting time and energy wastage of traditional storage water heaters. Residential models, offered by leading market players such as Rheem and Rinnai, deliver unparalleled continuous hot water supply, making them a perfect choice for large households.

Commercial

These heaters are also increasingly being recognized for their capacity to support commercial operations such as hotels, restaurants, and office buildings. High-capacity gas tankless water heaters, like those developed by Navien, can address the high-demand hot water requirements of these venues. Their major advantage is they provide a steady hot water supply, even amidst peak usage times, thus ensuring consistent service to customers and enhancing overall operational efficiency.

Industrial

On the industrial front, gas tankless water heaters find applications in industries such as manufacturing, pharmaceuticals, and food processing where a large volume of hot water is routinely required. Heaters from companies such as Bosch and Noritz are renowned for their durability, high output, and consistency, able to meet the rigorous demands of industrial usage. The systems significant energy saving features also contribute to cost and resource management, strengthening economic and environmental sustainability.

Gas Tankless Water Heaters vs. Substitutes:
Performance and Positioning Analysis

Gas Tankless Water Heaters offer limitless hot water supply, energy efficiency, and space-saving features, unparalleled by conventional storage water heaters. Their unique market positioning lies in the continuous surge in eco-conscious consumers, precipitating substantial potential for growth

Gas Tankless Water Heaters
  • Electric Tankless Water Heaters /
  • Solar Water Heaters /
  • Heat Pump Water Heaters
    High energy efficiency, space-saving design
    Pricey upfront costs, complex installation requirements
    High energy efficiency, lower operating costs
    High upfront costs, complex installation requirements

Gas Tankless Water Heaters vs. Substitutes:
Performance and Positioning Analysis

Gas Tankless Water Heaters

  • High energy efficiency, space-saving design
  • Pricey upfront costs, complex installation requirements

Electric Tankless Water Heaters / Solar Water Heaters / Heat Pump Water Heaters

  • High energy efficiency, lower operating costs
  • High upfront costs, complex installation requirements

Gas Tankless Water Heaters offer limitless hot water supply, energy efficiency, and space-saving features, unparalleled by conventional storage water heaters. Their unique market positioning lies in the continuous surge in eco-conscious consumers, precipitating substantial potential for growth

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Research Methodology

This market research methodology defines the Gas Tankless Water Heaters market scope, gathers reliable data, and validates findings using integrated primary and secondary research. Our systematic framework ensures precise market sizing, growth trend analysis, and competitive benchmarking.


Secondary Research Approach


We begin secondary research by defining the targeted market at macro and micro levels. As part of the Consumer Electronics ecosystem, we analyze Gas Tankless Water Heaters across {Application Area 1}, {Application Area 2}, and {Application Area 3} Applications. Our team gathers data systematically from country level ministerial sources, industry associations & federations, trade databases, company annual & quarterly reports and other credential sources, enabling us to map global and regional market size, pricing trends, regulatory standards, and technology advancements.



Key Sources Referenced:

Prodcom / Census US / Statcan / e-stat Japan / ABS Australia / KOSIS Korea

IMF DSBB / UNWTO / Jeita - Japan

• Trade Sources (USA Trade Census, EU Comext, China Customs)

Annual Reports / Industry Magazines / Country Level Ministerial Sources

merics.org / Climate.gov

Interviews of Industry Stake Holders

Industry Views of Consultants

• Annual Economic / Household Survey (US, EU, Japan)

We benchmark competitors such as Rinnai Corporation, Navien Inc., and Rheem Manufacturing Company by reviewing company financial statements, and regulatory filings. Our secondary insights identify key market drivers and constraints, forming the analytical foundation for primary research.


Primary Research Methods


We conduct structured interviews and surveys with industry stakeholders, including Materials Procurement, Component Production, and Assembly. Our geographic coverage spans Americas (40%), Europe (30%), Asia-Pacific (25%) and Middle East & Africa (5%). Our online surveys generally achieve a response rate of above 65%, and telephone interviews yield 60%, resulting in above 92% confidence level with a ±7% margin of error.


Through targeted questionnaires and in-depth interviews, we capture purchase intent, adoption barriers, brand perception across Segment Type. We use interview guides to ensure consistency and anonymous survey options to mitigate response bias. These primary insights validate secondary findings and align market sizing with real-world conditions.


Market Engineering & Data Analysis Framework


Our data analysis framework integrates Top-Down, Bottom-Up, and Company Market Share approaches to estimate and project market size with precision.


Top-down & Bottom-Up Process


In Top-down approach, we disaggregate global Consumer Electronics revenues to estimate the Gas Tankless Water Heaters segment, using historical growth patterns to set baseline trends. Simultaneously, in Bottom-up approach, we aggregate Country-Level Demand Data to derive regional and global forecasts, which provide granular consumption insights. By reconciling both approaches, we ensure statistical precision and cross-validation accuracy.


We evaluate the supply chain, spanning Materials Procurement (BHP Billiton, Rio Tinto), Component Production (Burner Systems International, Sit Group), and Assembly. Our parallel substitute analysis examines Electric Tankless Water Heaters, Solar Water Heaters, and Heat Pump Water Heaters, highlighting diversification opportunities and competitive risks.


Company Market Share & Benchmarking


We benchmark leading companies such as Rinnai Corporation, Navien Inc., and Rheem Manufacturing Company, analyzing their capabilities in pricing, product features, technology adoption, and distribution reach. By assessing company-level revenues and product portfolios, we derive market share comparisons, clarifying competitive positioning and growth trajectories across the ecosystem.


Our integration of data triangulation, supply chain evaluation, and company benchmarking, supported by our proprietary Directional Superposition methodology enables us to deliver precise forecasts and actionable strategic insights into the Gas Tankless Water Heaters market.


Quality Assurance and Compliance


We cross-reference secondary data with primary inputs and external expert reviews to confirm consistency. Further, we use stratified sampling, anonymous surveys, third-party interviews, and time-based sampling to reduce bias and strengthen our results.


Our methodology is developed in alignment with ISO 20252 standards and ICC/ESOMAR guidelines for research ethics. The study methodology follows globally recognized frameworks such as ISO 20252 and ICC codes of practice.

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Gas Tankless Water Heaters Market Data: Size, Segmentation & Growth Forecast

Report AttributeDetails
Market Value in 2025USD 1.6 billion
Revenue Forecast in 2034USD 3.3 billion
Growth RateCAGR of 8.3% from 2025 to 2034
Base Year for Estimation2024
Industry Revenue 20241.5 billion
Growth OpportunityUSD 1.8 billion
Historical Data2019 - 2023
Growth Projection / Forecast Period2025 - 2034
Market Size UnitsMarket Revenue in USD billion and Industry Statistics
Market Size 20241.5 billion USD
Market Size 20271.9 billion USD
Market Size 20292.2 billion USD
Market Size 20302.4 billion USD
Market Size 20343.3 billion USD
Market Size 20353.6 billion USD
Report CoverageMarket revenue for past 5 years and forecast for future 10 years, Competitive Analysis & Company Market Share, Strategic Insights & trends
Segments CoveredFlow Rate, End Use, Energy Factor, Technology
Regional scopeNorth America, Europe, Asia Pacific, Latin America and Middle East & Africa
Country scopeU.S., Canada, Mexico, UK, Germany, France, Italy, Spain, China, India, Japan, South Korea, Brazil, Mexico, Argentina, Saudi Arabia, UAE and South Africa
Companies ProfiledRinnai Corporation, Navien Inc., Rheem Manufacturing Company, Noritz America Corporation, Bradford White Corporation, A.O Smith Corporation, Bosch Thermotechnology Corp., State Water Heaters, Eccotemp Systems LLC, Takagi Industrial Co. Ltd, Stiebel Eltron Inc. and Marey International LLC.
CustomizationFree customization at segment, region or country scope and direct contact with report analyst team for 10 to 20 working hours for any additional niche requirement which is almost equivalent to 10% of report value

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Table of Contents

Industry Insights Report - Table Of Contents

Chapter 1

Executive Summary

Major Markets & Their Performance - Statistical Snapshots

Chapter 2

Research Methodology

2.1Axioms & Postulates
2.2Market Introduction & Research MethodologyEstimation & Forecast Parameters / Major Databases & Sources
Chapter 3

Market Dynamics

3.1Market OverviewDrivers / Restraints / Opportunities / M4 Factors
3.2Market Trends
3.2.1Introduction & Narratives
3.2.2Market Trends - Impact Analysis(Short, Medium & Long Term Impacts)
3.3Supply Chain Analysis
3.4Porter's Five ForcesSuppliers & Buyers' Bargaining Power, Threat of Substitution & New Market Entrants, Competitive Rivalry
Chapter 4

Gas Tankless Water Heaters Market Size, Opportunities & Strategic Insights, by Flow Rate

4.1Below 5 GPM
4.25–7 GPM
4.3Above 7 GPM
Chapter 5

Gas Tankless Water Heaters Market Size, Opportunities & Strategic Insights, by End Use

5.1Housing & Construction
5.2Hospitality
5.3Healthcare
5.4Education
5.5Manufacturing
5.6Others
Chapter 6

Gas Tankless Water Heaters Market Size, Opportunities & Strategic Insights, by Energy Factor

6.1High Efficiency
6.2Standard Efficiency
Chapter 7

Gas Tankless Water Heaters Market Size, Opportunities & Strategic Insights, by Technology

7.1Condensing
7.2Non-Condensing
Chapter 8

Gas Tankless Water Heaters Market, by Region

8.1North America Gas Tankless Water Heaters Market Size, Opportunities, Key Trends & Strategic Insights
8.1.1U.S.
8.1.2Canada
8.2Europe Gas Tankless Water Heaters Market Size, Opportunities, Key Trends & Strategic Insights
8.2.1Germany
8.2.2France
8.2.3UK
8.2.4Italy
8.2.5The Netherlands
8.2.6Rest of EU
8.3Asia Pacific Gas Tankless Water Heaters Market Size, Opportunities, Key Trends & Strategic Insights
8.3.1China
8.3.2Japan
8.3.3South Korea
8.3.4India
8.3.5Australia
8.3.6Thailand
8.3.7Rest of APAC
8.4Middle East & Africa Gas Tankless Water Heaters Market Size, Opportunities, Key Trends & Strategic Insights
8.4.1Saudi Arabia
8.4.2United Arab Emirates
8.4.3South Africa
8.4.4Rest of MEA
8.5Latin America Gas Tankless Water Heaters Market Size, Opportunities, Key Trends & Strategic Insights
8.5.1Brazil
8.5.2Mexico
8.5.3Rest of LA
8.6CIS Gas Tankless Water Heaters Market Size, Opportunities, Key Trends & Strategic Insights
8.6.1Russia
8.6.2Rest of CIS
Chapter 9

Competitive Landscape

9.1Competitive Dashboard & Market Share Analysis
9.2Company Profiles (Overview, Financials, Developments, SWOT)
9.2.1Rinnai Corporation
9.2.2Navien Inc.
9.2.3Rheem Manufacturing Company
9.2.4Noritz America Corporation
9.2.5Bradford White Corporation
9.2.6A.O Smith Corporation
9.2.7Bosch Thermotechnology Corp.
9.2.8State Water Heaters
9.2.9Eccotemp Systems LLC
9.2.10Takagi Industrial Co. Ltd
9.2.11Stiebel Eltron Inc.
9.2.12Marey International LLC.